Sewing-machine.



PATENTED MAY 29, 1906 7 SHEETS-SHEET 1.

No. 821,826. Y PATENTED MAY 29, 1906. G. PEDERSEN.

SEWING MACHINE.

APPLICATION FILED SEPT. 16, 1903.

7 SHEETS-SHEET 2.

Ina/67253;;

PATBNTED MAY 29, 1906.

0. ,PEDERSEN.

v SEWING MACHINE.

APPLIOATION FILED SEPT. 16-, 1903.

7 SHEBTSSHEET 3 gizverzfir/ 7%7719 z'a Ede raeig 7 SHEETS-SHEET 4.

PATENTED MAY 29, 1906.

G PEDERSBN SEWING MACHINE.

APPLIOATION FILED'SEPT. 16, 1903.

i fz w PATENTED MAY 29, 1906.

C. PEDERSEN. SEWING MACHINE.

APPLICATION FILED SEPT. 16, 1903.

'7 SHEETS-SHEET PATENTED MAY 29, 1906.

C. PEDERSEN. SEWING MACHINE.

APPLICATION FILED SEPT. 16, 1903.

7 SHEETS-SHEET 6.

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Nm 821,826 'PATENTED MAY 29, 1906. G. PEDERSEN, SEWING MACHINE.

APPLIOAT ION FILED SEPT. 16, 1903.

7 SHEETSSHEET 7.

make and use the same, reference being had to the acconpanying drawings,forming part of this specl' c and its operative mechanism.

- their operative mechanism. tail, psrtly'in sectiomrelatlng to thesame.

' ment of the swl.

' one s deof the machine. Fig.2 is a side elenurseries rsn'ssssn, or sr.LOUI s, mssousr. Assiciios To LANDlS MACHINE COMPANY, OF ST. LOUIS,MISSOURI, A CORPORATlON F= u ssonisi.

$EWlNG-MAGHENE.

n emcee.

Specification of Letters Patent.

Patented. May 29, 1906,

ilpnlioction filed ficptember 16, 1903. SerialNo. l'IBAlO.

To wZZ whom it may concern:

Be it known that I, Crnns'rren PEDERSEN, c citizen of the l nitedStates, residing at St. Louis, Missouri, ave invented at certain new anduseful lm rovement in Sewing-Machines, of which the chewing is a full,clear, and exact description, such as will enable others skilled in'the;art to which it appertains to atlon, in wh1ch- Fivure 1 is a sideelevation looking from vetion looking from the op osite side of themachine. Fig. 3 is a top p an view. Fig. 4 1s a side elevation of theawl and its operative side elevation illustrating the lopPp-spreederrig. 7 is a sectional etail relating to the same. Fig. 8 is e.fragmentary top plan view of the loopspreader. Fig. 8 is 'a detail,partly in sectron, relatin 'to the same. Fig. 9 is a top plan view 0 thethread-laying devices and Big. 9" is adei ig. l9 is a side view, partlyin section, ofthe' same. Fig. i1 is a diagrammatic view showing the.movements of the thread lsying devices with relation to the needle. Fig.12 is a side elevation illustrating the talre-up mechanism. Fig, 12 is stop plan view of the same. Fig. 13 is'a side elevation illustrating thepressenfoot' and its operative mechanism. Figs; 13 and 13* arerespectively side end top views of the presser-ioot. Fig.14 shows adevelopment of the peripheral cemgroov'e which controls the shiftin moveFig. 15 shows in ull lines the cam-groove which controls the rockingmovement of the awl and in dotted lines the cam-groove which controlsthe' needle. Fl 16 shows in full lines the cam-grooves whiccontrol thelongitudinal movements of the thread-laying devices and in dotted linesthe cam-groove which controls the movement of the loopespreader. Fig. l7shows a development of the peripheral canngroove which controls thetransverse movement of one of the thread-laying devices. Fig. 18illustrate the cam-groove which controls the operation of the take-upmechanism. Fig. 19 is a sectional elevation illustrating the mounting ofthe awl,-the needle-carrier, the needle-guide, and the presser-foot.carrier; and Fig. 20 is a front view of the machine, theshuttle-supporting head being omitted.

This invention relates to improvements in sewin machines, and moreparticularly to wax-t read sewing-machines.

The objects are, first, to provide a simple structure with the partsconv eniently arranged, secondly, to rovide a. structure .which permitsaccess to h various elements of the or anismg'thirdly, to provide astructureyrhere ,y 'e single source of heat supplies heat to the wax-potand also to the thread and themachine elements at the point at which thestitch is formed.

To-these endsand also to improve generallyupon machines of the characterindicated the invention consists in the various matters hereinafterdescribed and claimed.

Referring now more particularly to the drawings, 1 represents thesupporting-base of the machine, which has a rectangular to 2.

Upon this to are end plates 3, (shown in ctted lines in *ig. 3,) andsupported upon said end plates is a rectangular supportingdrame 4, fromsubstantially the center of which rises a head-frame 5. The plates 3 ateach end are arranged in pairs, each of which carries a. halfjournalportion 6, and said end plates are suitably secured upon the top of thesupportingdrase and the sup 0rting-iramc 4, as by means of screws orbolts passing through lugs 7 upon the said end plates. One of each pairof end plates being placed in positiom'the main 'shaittl of the machineis placed in the hearings 6, carried by said end plates, and theremaining end lstes 3 are then slipped in position to hold t is mainshaft, as shown most clearly in Fig. 1, said remaining end plates beingthen securely fastened. By reason of this construction the main .haft ofthe machine can be removed from its bearings merely by Withdrawing oneof each set of end plates. The wax-pot 9 is supported. upon the standard1 below the main shaft of the machine and is a part of the casting,which also includes walls 10, which depend about said wax-pot, the lamp,gas-jet, or other appropriate source oi heat being supported in anysuitable manner so that its upper end'is e readily had to the slightlyabove the bottom edge of said walls 10, the flame being thus surroundedby said i walls.

The shuttle 11 is of the same construction as that disclosed by patentto Whipple, No.

730,848, dated June 9, 1903, and is supported upright 16 is a sleeve 18,which has a flange 19 upon its inner end, while a ring-plate 20 isscrewed or otherwise secured to the outer end of said sleeve, so thatthe flange and the portion of the ring-plate which projects outwardlyfrom the periphery of said sleeve lie upon opposite sides of saidstandard 16, and thus prevent said sleeve from displacement, althoughthe sleeve can turn freely in the bearing. Said sleeve has anon-cireular opening 21, in which is received a correspondinglynon-circular portion 22 of a rock-shaft, so

that this rock-shaft turns with the said sleeve 18, but has longitudinalmovement therein. Formed integral with said rock-shaft is an arm 23, towhich the awl 24 is attached in any suitable manner, and also integralwith said shaft is an enlargement 25, provided with a peripheral groove26. Upon one side of said arm 23 is the before-mentioned squared ornoncircular portion '22 of the said rock-shaft, while upon the otherside of said enlargement and arm the rock-shaft is reduced in diameterand is. circular, as shown at 27. the standard 17 is a sleeve 28, whichis keyed or otherwise non-rotatably secured to said standard, saidsleeve having-a longitudinal opening in which the circular portion 27 ofthe rock-shaft is journaled, said rock-shaft having longitudinalmovement through the said sleeve. Rotatably mounted upon the said sleeve28 and upon the inner side of the said standard 17 are the presser-footcarrier 29, the needle-guide carrier 30, and the needle-carrier 31,these various parts being sub stantially three plates strung upon thesaid sleeve. The inner end of the sleeve is pro vided with a flange oroutwardly-extending shoulder 32, the said presser-foot carrier,needle-guide carrier, and needle-carrier lying be- 'tween the saidshoulder and the said standard 17, while the outer end of said sleeve isthreaded and provided with a nut 33, which bears against the outer faceof the standard 17. Thus the sleeve 28 is prevented from either rockingor moving longitudinally.

The presser-foot 34 extends from what may be termed the forward side ofthe before- Extending through the opening in mentioned presser-footcarrier 29, and extending rearwardly from said presser-foot carrier isan arm 35. lever 36, pivoted at one end upon the head-frame 5, has itsother end in engagement with said arm 35 and is also provided with acam-block 37 adapted tobe struck by a projection or arm 38 upon. thebefore-mentioned shaft 12 of the shuttle mechanism. A spring 39, actingupon the before-mentioned lever 36, normally holds the presser-foot inWork-engagin position,

and said arm 38, acting in opposition to said s ring at the propertimes, serves to elevate tlie presser-foot in. a manner which will be apparent. A hand-lever 40, having a cam end 40 which is adapted to engagesaid lever 36, enables the presser-foot to be manually raised whennecessaryv This mechanism relating to the presser-foot is'not hereinclaimed, as it is madethe subject of a separate application for patent.

Extending from the before mentioned sleeve 18 and integral therewith isan arm 41. A lever 42, hung at one end upon a shaft 43, is connected tosaid arm 41 through the link 44, and said lever 42 carries a cam-roll45, which is received in a cam-groove 46 in one side face of a'disk 47,secured upon the main shaft 8. Rotation of said disk serves, through theconnections just indicated, to rock the sleeve 18 and the shaft 27, andas the awl 24 is carried by the arm 23 integral with said shaft thisrocking of the shaft serves to reciprocate the awl through the workwhich may be supported upon the work-table 46 A lever 48 has one endreceived in the before mentioned slot 26 in the enlargement 25 upon saidshaft 27 and has its other end provided with a cam-roll 49, which entersa cam-groove 50 in the periphery of said before-mentioned disk 47. Apivot-pin 51, suitably adjustably supported upon the frame ofthemachine, passes through an, elongated slot 52 in said before mentionedlever 48, whereby the throw of the forward end of said lever can bevaried. As the said disk 47 rotates the said lever 48 is rocked upon itspivot and the said shaft 27', with the a'wl carried thereby, is shiftedlongitudinally. This shifting of the shaft in what may be termed itsforward. direction occurs while the awl is through the work, so that thework is fed in a manner which will be well understood. In the cycle ofmovements imparted to the awl said aw'l is first elevatedto cause thesame to pierce the work. The awl is then shifted forwardly to feed thework. The awl then backs out of the work, and the awl is then movedlongitudinally to its initial position. v

The needle-carrier 31 has the needle 53 clamped thereto in any suitablemanner and [18 provided with an arm 54. Upon the besenses is received inthe cam-groove 58, formed in the face of the disk 47 opposite to thebeforementioned face in which the cam-groove i6 is formed. disk 47rotates the needle is reciprocated thrcmgh the work in a manner whichwill be readily understood, the needle movingin the vertical plane inwhich the awl lies at the end of its forward feeding movement, so thatthe backs out of the work the needle follows said aw; through the holewhich has been pierced by the latter.

The needle-guide 59 is an arm extending from the before-mentionedneedle-guide car 'rier 3G and provided with an e o 60, in which thecurved. needle is receive and through which it can move; but as theneedle-guide forms no part of my present invention fur ther descriptionof same is deemed unnecessary.

Tne loop-spreader 63 is secured to an arm upon a rock-shaft 65, which issuitably journaled in lugs 66 upon the before-men tioned head-frame 5Upon said rock-shaft, between the said lugs 66, is secured (as by a st-sc1ew) a sleeve 67, which has a cylindrical arm 68 proiectingtherel'roni. A. connector. 69 has in one end a cylindrical socketinwhich the said. arm 68 is received, and a pin 70, fas tened upon saidconnector, extends through an elongated slot 71. in said arm 68, sothat, although said connector 69 is held against separation from saidarm 68, the connector can. rock upon said arm. Tne end of said connector69 not provided with the beforementioned socket slotted or bifurcated,shown at 72, and in this horizontal slot re-. ceived one end of a link'73, the link being )ivotally connected to said connector 69, hy a pin 71.

A lever has its lower end pivotally connected to the frame oi themachine and -carries a cam-roll 76, which enters a cam groove 77 in onelace of a disk 78. A. block 79 has a reduced shank 80, which extendsthrough and is pi votally supported in the upper end oi said lever 75,the lever end being held be tween the body portion of saidconnedtorblock 79 and a washer 81, hold in position by a set-screw 82,entering the end of said reduced shank 80. The connector-block 79 isslotted or bifurcated, and in this horizontal slot isrcceivcd what maybe tern'icd the innor end of the bel'oro-n'lcntioncd link 73, said linkbeing; pivotally connected to said block 79.

From the foregoing it will be apparent that as the disk 78 rotates theloop-spreader ('53 is rcclprocated. The described connections botwccnthe lever 75 and the loop-sproa4lcr 63 permit the latter to be properlyopcratcd without any strain upon the parts.

The thread-laying mechanism is now to be considered. A horizontallongitudinally-rd ciprocatory arm. 83 has its forward end bout It willbe manifest that said the rear end of this arm is pivote to the upperend of a lever 85, whose lower end is hung u on the shaft 86, upon whichthe lower en oi the before-mentioned lever 75 is hung. This lever 85 isprovided with a cam-roll 87, which is received in a cam-groove 88 in theface of the before-mentioned disk 78 opposite to that face of said diskin which the before- Inentioned cam-groove 77 is formed. It will thus heapparent that as the said disk 7 8 r0- tates the said arm 83, with itsthread-engaging linger 84, is reciprocated longitudinally. A horizontallongitudinally-reciprocatory arm 89 has a thread-eye 90 inits forwardend, so that said arm is a thread-carrier, and the rear end of said armis ivotally connected to a connector 91, whic is provided with acylindrical socket receivin the cylindrical upper end 92 of a substantia1y vertical lever 93, whose lower end is hun upon the beforei'nentionedshaft '86. Said lever 93 is provided with a cam-roll 9 1, which enters acamgroove 95 in the same face of the disk 7 8 in which thehefore-mentioned cam-groove'88 is formed. A lever 96, suitably pivotedupon the before-mentioned frame 41, has a cam-roll 97 received in acamgroove 98, formed in the periphery of the before-mentioned disk '78,and an arm 99 upon said lever has adjustably secured in an elongatedslot 100 therein a pivot-pin 101, which enters an elonated slot 102 inthe said thread-carrying 7m 89. It will thus be apparent that as i saiddisk 78 rotates said thread-carrying arm is reciprocated longitudinallyby means of the lever 93 and is rocked transversely on the end 92 ofsaid lever as a pivot by the said lever 96. A pin 103 upon said arm 89plays in an elongated slot 104 in a plate 105, suitably secured to themachine-frame, and serves to guide the said arm 39 in its longitudinalreciprocations.

The thread at from the take-up passes through the threaded eye 90 in thearm 89 and thence to the work upon the work-table 47. Thethread-retaining linger 84 is above said threadeye 90. The operation ofthe thread-laying devices can be best understood by reference to Fig.11. The barbed needle 53 having passed downwardly through the work, thethread-carrying firm 89 is acted upon by both the lovers 9.3 and 96, sothat the thread. is carried across what may be termed the rear side ofthe retaining-finger 84, and the retaining-finger and thread-' carrierare then both moved backwardly into the position shown by dotted linesin the lower part of Fig. 11. The retaining-finger thus engaging thethread, the thread-carrier then moves forwardly and around the needle,as shown by the line 7/ in Fig. 11 thus laying. the thread in the barbof the needle, The needle then rises with the thread and both thethread-carri er 89 and theretaining-linger guide 1'17.

84move forwardly to their normal positions, in which they are shown byfull lines in Fig. 11.

An angle-plate, 106, secured to the headframe 5, extends over the saidarms 83 and 89, thus reventing the same from rising, and a depen ing rib107 upon said angle-plate lies between the said arms, and thus preventsthem from interfering with each other. The

said arms are guided between thebefore-mentioned angle-plate and theupper surface of the frame 4, while the arm 83 is also guided betweenthe said rib 107 and the side face of the said head-plate 5.

Suitably journaled at the front of the machine-frame is arock-shaft108,- which has a rearwardly-extending rock-arm 109, connected by a link110 at the forward end of a lever 111, the rear end of said lever beinghung upon the before-mentioned shaft 4 3, a cam-r0 l 112 upon said leverentering a camgroove 113 in a disk 114. A second rockarm 115 extendsforwardly from said ro ckshaft 108 and has the take-up lever 116 pivotedthereto, said take-up lever being provided with a ulley or othersuitable threadl otation of the disk 114 serves to reciprocate thetake-up lever 116 in a manner which will be readily understood, and theoperation of this take-up lever will be readily ap arentv n thebefore-mentioned wax-pot 9 is a thread-guide 118. The thread from thesupply 119 passes about this thread-guide 118 through the wax-pot,thence over thethreadguide 120, at the front of the machine, thenceupwardly over a thread-guide 121 at the front the machine, thencedownwardly and about the pulley 117 in the take-u lever, thence upwardlythrough the threa eye 90 in the thread-carrier 89, and thence to thework.

In the general operation of the machine it will be assumed that theneedle is in raised or retracted position, that the awl 1s inlowered orretracted position, that the thread-laying arms 83 and 89 are in' theirnormal forward positions, that the loop-spreader is in its ro jcctedposition, having just s read the cop of the stitch about to be competed, and that the presser-foot is in work-engaging position. As themachine commences a cycle of operations the awl rises and icrces thework for a new stitch, the beak o the shuttle at about the same timeentering the loop of the stitch about to he completed. 'The 100-spreader then returns to normal position, ti foot rises, and the awlshifts forwardly to feed the work and bring the hole just pierced underthe needle. whereuponthe awl retreats and the needle commences todescend through the work.

While the needle is descending the awl shifts back to its normalposition, the thread-carrier moves backwardly to carry the thread acrossthe rear side of the retaining-finger 1e presser- 'lhe presser-footthen'falls,

the retaining-finger 84 move forwardly to their normal positions. Theloop-spreader then spreadsthe loop, and the beak of the shuttle catchesthis spread loop and carries it around in a well-understood manner, theawl commencing to operate for a new cycle of o erations as the loop iscaught by the shuttl e. .The'take-up operates upon the thread in amanner WlllCh is well understood.

In the present machine the head-frame 5 projects at the front, so thatthe shuttle is substantially above the needle and the awl, and thethread between the guide 1.20 and the thread-eye lies substantiallybelow the needle and the shuttle. The forward wall 10 about the wax-potand surrounding the flame is slotted, as shown at 122, and a plate 123,curved upwardly and outwardly, extends from said wall and has its endsconnected ,to the latter by end walls 124, a-flue from theheat-receiving space inclosed by the walls 10 being'thus roduced. Hingedto the frame of the mac ine at a point near the forward edge of eachforward end plate 3 is a housingplate near its free edge being bulgedoutwardly, as shown at 126, so that when these plates are swung togetherthey produce a fine which incloses the thread between the threadguide120 and the thread-eye 90, theineedle and the shuttle lying directlyabove the open upper end of said flue. A flue-section having a frontplate 127 and side plates 128 is hinged between lugs 129 upon said endplates 124, and when this flue-seetion'is swung upwardly its up er endis received inside of t e flue produce by the extending portions 126 ofthe housing-plates 125, and this flue-section connects the flue reducedby said housing-plates with the plates 123 and 124. A suitable late 130serves to lock the housing-plates 125 together. I mediately below thethread-guide 120 in order to protect the thread upon said guide fromheat thrown into the before-mentioned flue.

Rods 132, journaled in the front and back walls 10, havedeflector-plates 133 carried thereon, and the ends of these rods extendbeyond'the forward plate 10 and are upturned to produce handles 134,these handles being preferahlywcighted, as shownat 135. When the machineis to be started, the handles 134 are thrown in order to carry thedeflectorpla'tes 133 away from each other, and thus cave the bottom ofthe wax-pot 9 exposed to the heat from the heater. After the wax has ICOue produced b the e A deflector-plate 131 extends 11nver;

tween said lever and said shaft whereby in the reciprocations of theformer said shaft is reciprocated longitudinally; substantially as 7described.

7. In a sewing-machine, the combination with stitch-forming mechanism,of a support having a journal-opening, a sleeve in said opening, meansfor rockin said sleeve, a shaft longitudinally movable in said sleeveand connected to the same to rock therewith, said shaft being. providedwith a groove, a work-shifting tool supported upon said shaft to rocktherewith, -a lever having a portion entering said groove, and means forreci rocating said lever; substantially as descri ed. -8. In asewing-machine, the combination with stitch-forming mechanism, of asupport having a journal-opening, a sleeve in said opening, means forrocking said sleeve, a shaft longitudinally movable in said sleeve andconnected to the same to rock therewith, said shaft being provided witha groove, an awl supported upon said shaft to rock therewith, a leverhaving a portion entering said groove, and means for reciprocating saidlesulbstantially as described. 9. Ir a sewing-machine, the combinationwith stitch-forming mechanism, of a support,

'a sleeve therein'and having one of the elements of said stitch-formingmechanism mounted thereon and movable with respect to the same, meansfor so moving said element, a shaft niovably mounted in said sleeve,means for moving said shaft with respect to said sleeve, and operativeconnection between said sli'aft'and one of the elements of saidstitch-forming mechanism; substantially as described. p

10. In a sewing-machine, the combination with stitch-forming mechanism,of a support, a sleeve therein, a shaft journaled in said sleeve, aneedle-carrier mounted upon said sleeve to rock thereon, means forrocking said needle-carrier, and operative connection between said shaft.and an element of said stitch-forming mechanism; substantially asdescribed.

11. In a sewing1nacl1ine, the combination with stitch-forming mechanism,of a support, a sleeve in said support,a shaft journaled in said sleeve,a needle-carrier upon said sleeve, a presser-foot carrier upon. saidsleeve, means for rocking said needle-carrier, and said Presser-footcarrier, and operative connection between said shaft and an element ofsaid stitch-forming mechanism; substantially as described.

12. In a sewing-machine, the combination with stitch-forming mechanism,of a support having. a journal-opening therein, a sleeve journaled insaid support, means for rocking said sleeve, a second su port, a secondsleeve non-rotatably mounted upon. said support and having one of theelements of said stitch.- forming mechanism mounted. thereon to movewith respect thereto, means for so moving said element, alongitudinally-reciprocatory shaft journaled in said second sleeve andalso entering said first-mentioned sleeve, means for connecting saidfirstmen tioned sleeve and said shaft to cause said elements to rocktogether, means for longitudi I ally reciprocating said shaft, andoperative connection between said shaft and one of the elements of saidstitch-forming. mechanism;

substantially as described.

13. In a sewing-machine, the combination with stitch-forming mechanism,of a support having a journal-opening therein, a sleeve journaled insaid su port, means forrocking said sleeve, a secon support, a secondsleeve non-rotatably mounted upon said support, alongitudinally-reeiprocatory shaft journaled in said second sleeve andalso entering said first-mentioned sleeve, means for connecting saidfirst-mentioned sleeve and said sha'ftto cause said elements to rocktogether, aneedlecarrier mounted upon said second-mentioned sleeve,means for rocking said needlecarrier, an awl carried by said shaft, andmeans for longitudinally reciprocating said shaft; substantially asdescribed 14. In a sewing-machine, the combination with stitch-formingmechanism, of a rockshaft, a loop-spreader thereon, a rock-arm upon saidrock-shaft a connector having rocking connection about said rock-arm, an,operatlng-lever, and a link having one end in connection with saidoperating-lever and its other end pivoted upon said connector; sub-fstantiallyas described.

with stitch-formingmechanism, of a rockshaft, a loop-spreader thereon,an arm upon said rock-shaft, a connector having a socket receiving saidarm, whereby said connector can rock about said arm, an operating-lever,a connector having rocking connection with said operating-lever, and alink pivoted to said connectors; substantially as described.

'16. In a sewing-machine, the combination with stitch-forming mechanism,of a longitudinally-reciprocatory arm provided with a thread-guide, anoperating lever, a connector pivotally mounted upon said lever by havinga socket receiving the end of said lever, whereby said connector canrock about said lever as a pivot, pivotal connection betweensaidconnector and 'said arm, and means for rocking said armtransversely; substantially as described.

17. In a sewing-machine, the combination with stitch-forming mechanism,of a longitudinally-reciprocatory arm provided with a thread-guide, anoperating-lever, a connector pivotally mounted upon said lever by havinga socket receiving theend of said lever, whereby said connector can rockabout said lever a pivot, pivotal connection between said connector andsaid arm, a second lever,

ICC.

and said arm whereby move and lever causes said in versely, a relativelysieti guiding connection bemeen s said arm; substentieliy '4 Intestimony Whereor 1 he. signature, in the presence oi this 31st day ofAugust, 1963.

' Witnesses GALEs P. MOORE, GEORGE BAKEWF'

